.audio-calculator{--audio-accent:#34d399;--audio-soft:#34d3991a;max-width:1120px;color:var(--calc-text-primary,#f8fafc);margin:0 auto;padding:0 24px 40px}[data-theme=light] .audio-calculator{--audio-accent:#047857;--audio-soft:#04785714}.audio-calculator [hidden][hidden]{display:none}.audio-calculator .page-hero{text-align:left;padding:30px 0 20px}.audio-calculator .page-title{color:var(--calc-text-primary,#f8fafc);margin:0 0 8px;font-size:clamp(1.5rem,3vw,2.1rem);line-height:1.2}.audio-calculator .page-subtitle{color:var(--calc-text-dim,#a8b8cc);margin:0;font-size:.95rem;line-height:1.5}.audio-calculator .outer-tab-bar{border:1px solid var(--calc-border-default,#334155);border-radius:12px;gap:4px;margin-bottom:16px;padding:4px;display:flex}.audio-calculator button{font:inherit;cursor:pointer}.audio-calculator .outer-tab{color:var(--calc-text-dim,#a8b8cc);background:0 0;border:0;border-radius:8px;flex:1;padding:12px 8px;font-size:.9rem;font-weight:600}.audio-calculator .outer-tab.active{background:var(--audio-accent);color:#06281e}[data-theme=light] .audio-calculator .outer-tab.active{color:#fff}.audio-workspace{grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:start;gap:20px;display:grid}.audio-calculator .input-card,.audio-calculator .result-card{background:var(--calc-bg-card,#111827);border:1px solid var(--calc-border-default,#334155);border-radius:16px;min-width:0;padding:20px}.audio-calculator .result-card{border-top:3px solid var(--audio-accent)}.audio-calculator .card-title{color:var(--calc-text-dim,#a8b8cc);margin:0 0 12px;font-size:.9rem;font-weight:650}.audio-calculator .preset-strip{flex-wrap:wrap;gap:6px;margin-bottom:16px;display:flex}.audio-calculator .preset-chip{border:1px solid var(--calc-border-default,#334155);color:var(--calc-text-primary,#f8fafc);background:0 0;border-radius:20px;min-height:36px;padding:7px 10px;font-size:.76rem}.audio-calculator .preset-chip[aria-pressed=true]{background:var(--audio-soft);border-color:var(--audio-accent);color:var(--audio-accent)}.audio-calculator .form-group{flex-direction:column;gap:5px;min-width:0;margin-bottom:12px;display:flex}.audio-calculator label,.audio-calculator legend{color:var(--calc-text-primary,#f8fafc);font-size:.84rem;font-weight:600}.audio-calculator input,.audio-calculator select{box-sizing:border-box;border:1px solid var(--calc-border-default,#334155);background:var(--calc-bg-input,#172033);width:100%;min-width:0;min-height:44px;color:var(--calc-text-primary,#f8fafc);font:1rem var(--calc-font-mono,monospace);border-radius:8px;padding:9px 10px}[data-theme=light] .audio-calculator input,[data-theme=light] .audio-calculator select{color:#0f172a;background:#f1f5f9}.audio-calculator :focus-visible{outline:2px solid var(--audio-accent);outline-offset:3px}.audio-calculator input[aria-invalid=true]{border-color:var(--calc-rose,#fb7185)}.duration-fields{border:0;min-width:0;margin:0;padding:0}.duration-fields legend{margin-bottom:8px}.audio-duration-parts{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;display:grid}.audio-calculator .audio-field-pair{grid-template-columns:repeat(2,minmax(0,1fr));gap:0 12px;display:grid}.audio-calculator .input-hint{color:var(--calc-text-dim,#a8b8cc);margin:6px 0 12px;font-size:.8rem;line-height:1.5}.audio-calculator .field-error{color:var(--calc-rose,#fb7185);font-size:.78rem;line-height:1.4}.audio-calculator .field-error:empty{display:none}[data-theme=light] .audio-calculator .field-error{color:#be123c}.example-label{color:var(--audio-accent);background:var(--audio-soft);border-radius:6px;margin:0 0 14px;padding:5px 8px;font-size:.78rem;display:inline-block}.audio-calculator .result-value{color:var(--audio-accent);font:700 clamp(2rem, 5vw, 3rem) var(--calc-font-mono,monospace);overflow-wrap:anywhere;line-height:1.15}.result-binary{color:var(--calc-text-dim,#a8b8cc);margin:6px 0;font-size:.9rem}.audio-calculator .result-detail{margin:12px 0;font-size:.9rem;line-height:1.5}.audio-calculator .action-bar{flex-wrap:wrap;gap:6px;margin:16px 0;display:flex}.audio-calculator .action-btn{min-height:40px;color:var(--calc-text-primary,#f8fafc);border:1px solid var(--calc-border-default,#334155);background:0 0;border-radius:8px;padding:7px 12px;font-size:.8rem}.audio-calculator button:disabled{opacity:.45;cursor:default}.audio-calculator details{border-top:1px solid var(--calc-border-default,#334155);padding-top:14px}.audio-calculator summary{cursor:pointer;font-size:.85rem}#storage-facts{grid-template-columns:1fr auto;gap:10px;margin:16px 0;font-size:.85rem;display:grid}#storage-facts dd{text-align:right;margin:0;font-weight:600}.audio-calculator .outer-tab-panel{margin-top:20px}.audio-calculator .outer-tab-panel h2{margin:0 0 10px;font-size:1.15rem}.audio-calculator .comp-table-wrap,.audio-calculator .lib-table-wrap{border:1px solid var(--calc-border-default,#334155);border-radius:12px;overflow-x:auto}.audio-calculator table{border-collapse:collapse;width:100%;font-size:.88rem}.audio-calculator th,.audio-calculator td{text-align:left;border-bottom:1px solid var(--calc-border-default,#334155);white-space:nowrap;padding:12px 14px}.audio-calculator th{background:var(--audio-soft);font-weight:600}.audio-calculator tr[data-selected]{background:var(--audio-soft)}.audio-mobile-result{display:none}@media (width<=767px){.audio-calculator{padding:0 16px 100px}.audio-calculator .page-hero{padding:20px 0 16px}.audio-calculator .page-subtitle{font-size:.85rem}.audio-calculator .outer-tab{padding:10px 4px;font-size:.76rem}.audio-workspace{grid-template-columns:1fr;gap:12px}.audio-calculator .input-card,.audio-calculator .result-card{padding:16px}.audio-calculator .preset-strip{flex-wrap:nowrap}.audio-calculator .preset-chip{flex:1;padding:6px 4px;font-size:.69rem}.audio-mobile-result{z-index:90;padding:10px 16px max(10px, env(safe-area-inset-bottom));background:var(--calc-bg-card,#111827);border-top:2px solid var(--audio-accent);grid-template-columns:1fr auto;display:grid;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -4px 18px #0000001f}.audio-mobile-result span{font-size:.75rem}.audio-mobile-result strong{color:var(--audio-accent);grid-column:1;font-size:1.2rem}.audio-mobile-result button{background:var(--audio-soft);color:var(--audio-accent);border:0;border-radius:8px;grid-area:1/2/3;min-height:44px;padding:8px 12px;font-size:.8rem}}@media print{.audio-calculator .input-card,.audio-calculator .outer-tab-bar,.audio-calculator .action-bar,.audio-calculator .audio-mobile-result,#contentNav,.edu-canvas{display:none}.audio-calculator .audio-workspace{display:block}.audio-calculator .result-card{break-inside:avoid;color:#111;background:#fff}.audio-calculator .result-value,.audio-calculator .result-binary,.audio-calculator .input-hint{color:#111}.audio-calculator #storage-details>*{display:block}.audio-calculator{padding:0}}